CN204439651U - A kind of filter paper conveyer for atmosphere heavy metal detector - Google Patents
A kind of filter paper conveyer for atmosphere heavy metal detector Download PDFInfo
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- CN204439651U CN204439651U CN201520175815.3U CN201520175815U CN204439651U CN 204439651 U CN204439651 U CN 204439651U CN 201520175815 U CN201520175815 U CN 201520175815U CN 204439651 U CN204439651 U CN 204439651U
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Abstract
The utility model relates to a kind of filter paper conveyer for atmosphere heavy metal detector, this device comprises take-off reel, machine reel, the first deflecting roller, the second deflecting roller, draw-gear and filter-paper-tape, it is characterized in that, the side of described filter-paper-tape is being provided with moving image displacement transducer close to the first steer wheel position, and the detection mouth of this sensor is covered by filter-paper-tape; Described moving image displacement transducer comprises LED light emitting diode, photosensitive imaging module and the first lens be located between LED light emitting diode and photosensitive imaging module in light path and the second lens, wherein, the light of described LED light emitting diode injection is through the first lens lighting on filter-paper-tape, and the light of filter-paper-tape reflection gathers on the light-sensitive surface of photosensitive imaging module through the second lens.The utility model adopts contactless moving image displacement transducer to detect the actual displacement of filter-paper-tape, significantly improves accuracy and the reliability of the detection of atmosphere heavy metal automatic on-line monitoring system.
Description
Technical field
The utility model relates to the concentration of test suspension particle, is specifically related to atmosphere heavy metal detector, the filter paper transmission particularly in this instrument.
Background technology
Along with China's heavy metal pollution is more and more serious, the detection of atmosphere heavy metal is subject to extensive concern.Current China atmosphere heavy metal detection method, still based on On-site sampling concentration, test in laboratory, therefore studies atmosphere heavy metal automatic detection device to realize atmosphere heavy metal on-line checkingi and analysis has very important realistic meaning.The automatic testing process of atmosphere heavy metal comprise the enrichment of sample, the automatic transmission of enrichment sample and sample data acquisition with resolve three parts.Wherein enrichment sample self enrichment region is the key realizing atmosphere heavy metal automatic on-line testing process to the automatic transmission of surveyed area.
The sample self enrichment region of enrichment, in the moving process of surveyed area, for guaranteeing that sample accurately moves to the optimal location of surveyed area, needing to realize the accurate location to sample, namely needing to detect the displacement of sample.Atmosphere heavy metal, after enrichment, filter paper forms sample, and sample there is no obvious physical features, and as a part for filter paper, the displacement detecting of sample is by realizing the displacement detecting of filter paper.Existing filter paper displacement detecting method is contact measurement, as the filter paper conveyer of Authorization Notice No. disclosed in CN 203037554U disclosed in utility application, this device comprises clutch plate, the multiple runner of driving disc spacing pressing and scrambler, wherein scrambler is sampled carrier by the friction force with sampling carrier (i.e. filter-paper-tape) and drives, step-by-step counting is produced accurately to control the move distance of sampling carrier by the rotation of scrambler, thus ensure that sampling carrier accurately can be sent to XRF test section ([0051] of instructions and [0053] section and Fig. 6).But, above-mentioned utility model scheme due to filter-paper-tape need drive scrambler rotate, therefore not only there is mechanical transmission errors, cannot ensure that the accurately mobile and off-position in sample area is under detection position, and once the tensile force deficiency of filter-paper-tape will be skidded, and then whole system is caused just cannot normally to work.In order to improve the technical matters of skidding; Authorization Notice No. is that the utility application of CN 203870112U discloses a kind of filter paper conveyer for atmosphere heavy metal analyser; this device has mainly made following 2 improvement to prior art: the first has set up anti-skidding edge protection on the both sides of pulley, and it two is in the delivery section of transmission shaft, set up rubber ring (see instructions [0018] section).But, if the technical scheme that above-mentioned Authorization Notice No. is the utility model of CN 203870112U still adopts scrambler to detect paper tape displacement, also mechanical transmission errors there is the deficiency that above-mentioned Authorization Notice No. is CN 203037554U utility model patent without doubt, because cannot be exempted from.
Summary of the invention
In view of the deficiency existing for prior art, technical problem to be solved in the utility model is to provide a kind of filter paper conveyer for atmosphere heavy metal detector, this device is not only accurate to filter-paper-tape displacement detecting, and there is not the impact of mechanical transmission errors, and working stability is reliable.
The technical scheme that the utility model solves the problem is as follows:
A kind of filter paper conveyer for atmosphere heavy metal detector, this device comprises take-off reel, machine reel, the first deflecting roller, the second deflecting roller, draw-gear and filter-paper-tape, wherein, described draw-gear is made up of the drive motor and driving shaft that hold filter-paper-tape, described filter-paper-tape is stored on take-off reel, and termination is walked around after the first deflecting roller involves by draw-gear, then walks around the second deflecting roller and be wound on machine reel, it is characterized in that
The side of described filter-paper-tape is being provided with moving image displacement transducer close to the first steer wheel position, and the detection mouth of this sensor is covered by filter-paper-tape; Described moving image displacement transducer comprises LED light emitting diode, photosensitive imaging module and the first lens be located between LED light emitting diode and photosensitive imaging module in light path and the second lens, wherein, the light of described LED light emitting diode injection is through the first lens lighting on filter-paper-tape, and the light of filter-paper-tape reflection gathers on the light-sensitive surface of photosensitive imaging module through the second lens.
The image collected can be sent in the graphics processing unit (as DSP) of atmosphere heavy metal detector by the moving image displacement transducer in filter paper conveyer described in the utility model, the unique point (i.e. unique point on filter-paper-tape) in image is extracted by graphics processing unit, analyze the change in location of same unique point in two two field pictures of front and back again, then calculate direction of motion and the speed of filter-paper-tape.The control system of atmosphere heavy metal detector is again according to the speed of the distance between moving image displacement transducer and sample collection unit and the Distance geometry filter-paper-tape between sample collection unit and XRF detecting unit detection zone, control filter-paper-tape to be transported to sample collection unit place and to carry out enrichment, then by each formed enrichment region exactly off-position analyze under XRF detecting unit.
The utility model comparatively prior art has following beneficial effect:
1, adopt contactless moving image displacement transducer to detect the actual displacement of filter-paper-tape, not by mechanical transmission errors even filter-paper-tape slight slip affect, significantly improve accuracy and the reliability of atmosphere heavy metal automatic on-line monitoring system detection;
2, in addition, adopt contactless moving image displacement transducer to detect filter-paper-tape displacement, both reduced scrambler and produced frictional resistance, and turn avoid the frictionally damage that scrambler produces filter-paper-tape, significantly improve stability and the reliability of instrument operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the filter paper conveyer for atmosphere heavy metal detector described in the utility model.
Fig. 2 is stereographic map embodiment illustrated in fig. 1.
Fig. 3 is the structural representation of a specific embodiment of middle moving image displacement transducer embodiment illustrated in fig. 1.
Fig. 4 forms a kind of structural representation of atmosphere heavy metal detector for adopting filter paper conveyer shown in Fig. 1.
Embodiment
See Fig. 1 and Fig. 2, this filter paper conveyer comprises take-off reel 1, machine reel 2, first deflecting roller 3, second deflecting roller 4, draw-gear, filter-paper-tape 5 and moving image displacement transducer 6, wherein, draw-gear is made up of the drive motor 7 and driving shaft 8 that hold filter-paper-tape 5; Filter-paper-tape 5 is stored on take-off reel 1, and termination is walked around after the first deflecting roller 3 involves by draw-gear, then walks around the second deflecting roller 4 and be wound on machine reel 2; Moving image displacement transducer 6 is located at the side of filter-paper-tape 5 and close to the first deflecting roller 3 position, its detection mouth is covered by filter-paper-tape 5.In order to prevent filter-paper-tape 5 slippage, the both sides of the first deflecting roller 3 and the second deflecting roller 4 are equipped with anti-skidding edge protection 9.
See Fig. 3, moving image displacement transducer 6 has shell 14, be provided with LED light emitting diode 10, photosensitive imaging module 11 in shell 14 and be located at the first lens 12 and the second lens 13 between LED light emitting diode 10 and photosensitive imaging module 11 in light path, wherein, the light that LED light emitting diode 10 penetrates is irradiated on filter-paper-tape 5 through the first lens 12, and the light that filter-paper-tape 5 reflects gathers on the light-sensitive surface of photosensitive imaging module 11 through the second lens 13.
See Fig. 4, sample collection unit 15 and XRF detecting unit 16 that the basis of Fig. 2 is installed enrichment sample again can composed atmosphere heavy metal detectors.During work, first start draw-gear and machine reel 2, filter-paper-tape 5 just discharges from take-off reel 1 and is winding on machine reel 2; Then collecting unit 15 and XRF detecting unit 16 is started, namely by sample collection unit 15, being enriched on filter-paper-tape 5 containing the dust of heavy metal particles in air is formed enrichment region 17, this enrichment region 17 again by transmission and exactly off-position analyze for 16 times in XRF detecting unit.
Claims (2)
1. the filter paper conveyer for atmosphere heavy metal detector, this device comprises take-off reel, machine reel, the first deflecting roller, the second deflecting roller, draw-gear and filter-paper-tape, wherein, described draw-gear is made up of the drive motor and driving shaft that hold filter-paper-tape, described filter-paper-tape is stored on take-off reel, and termination is walked around after the first deflecting roller involves by draw-gear, then walks around the second deflecting roller and be wound on machine reel, it is characterized in that
The side of described filter-paper-tape is being provided with moving image displacement transducer close to the first steer wheel position, and the detection mouth of this sensor is covered by filter-paper-tape; Described moving image displacement transducer comprises LED light emitting diode, photosensitive imaging module and the first lens be located between LED light emitting diode and photosensitive imaging module in light path and the second lens, wherein, the light of described LED light emitting diode injection is through the first lens lighting on filter-paper-tape, and the light of filter-paper-tape reflection gathers on the light-sensitive surface of photosensitive imaging module through the second lens.
2. a kind of filter paper conveyer for atmosphere heavy metal detector according to claim 1, is characterized in that, the first described deflecting roller and the both sides of the second deflecting roller are equipped with anti-skidding edge protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520175815.3U CN204439651U (en) | 2015-03-26 | 2015-03-26 | A kind of filter paper conveyer for atmosphere heavy metal detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520175815.3U CN204439651U (en) | 2015-03-26 | 2015-03-26 | A kind of filter paper conveyer for atmosphere heavy metal detector |
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| CN204439651U true CN204439651U (en) | 2015-07-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709126A (en) * | 2019-02-21 | 2019-05-03 | 中国科学院合肥物质科学研究院 | Algae enrichment-X-ray fluorescence spectra heavy metal in water automatic detection device and method |
| CN110412017A (en) * | 2019-08-26 | 2019-11-05 | 青岛大学 | A kind of spectrum detection device and its method of haze elemental composition |
| CN112198098A (en) * | 2020-10-14 | 2021-01-08 | 青岛明德环保仪器有限公司 | Particulate matter concentration detection device based on beta-ray method |
| CN112304996A (en) * | 2020-10-29 | 2021-02-02 | 中国兵器工业第五九研究所 | Device and method for monitoring chloride ions in atmosphere |
| CN113189084A (en) * | 2021-04-25 | 2021-07-30 | 南京信息工程大学 | Quasi-online detection device and method for atmospheric particulates and heavy metals in sewage |
-
2015
- 2015-03-26 CN CN201520175815.3U patent/CN204439651U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709126A (en) * | 2019-02-21 | 2019-05-03 | 中国科学院合肥物质科学研究院 | Algae enrichment-X-ray fluorescence spectra heavy metal in water automatic detection device and method |
| CN109709126B (en) * | 2019-02-21 | 2021-11-02 | 中国科学院合肥物质科学研究院 | Automatic detection device and method for heavy metals in water body by algae enrichment-X-ray fluorescence spectrum |
| CN110412017A (en) * | 2019-08-26 | 2019-11-05 | 青岛大学 | A kind of spectrum detection device and its method of haze elemental composition |
| CN112198098A (en) * | 2020-10-14 | 2021-01-08 | 青岛明德环保仪器有限公司 | Particulate matter concentration detection device based on beta-ray method |
| CN112198098B (en) * | 2020-10-14 | 2022-09-27 | 青岛明华电子仪器有限公司 | Particulate matter concentration detection device based on beta-ray method |
| CN112304996A (en) * | 2020-10-29 | 2021-02-02 | 中国兵器工业第五九研究所 | Device and method for monitoring chloride ions in atmosphere |
| CN112304996B (en) * | 2020-10-29 | 2023-08-18 | 中国兵器工业第五九研究所 | Device and method for monitoring chloride ions in atmosphere |
| CN113189084A (en) * | 2021-04-25 | 2021-07-30 | 南京信息工程大学 | Quasi-online detection device and method for atmospheric particulates and heavy metals in sewage |
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